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October 14, 1950

Congenital Deformities of the Upper Extremities

JAMA. 1950;144(7):593. doi:10.1001/jama.1950.02920070083042

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This book is divided into 11 chapters, which deal with the incidence of deformities, classification of material, etiology, split hand and atypical split hand, ectrodactylism, radial and ulnar defects, amputations and symbrachydactylism, spontaneous amputations and exogenous syndactylism, harelip and cleft palate, and eugenic considerations. The author stresses mainly the relation of congenital deformities and the part played by inheritance. Farabee demonstrated in 1905 that brachydactylism was due to a dominant gene in the mendelian sense. The author presents a comprehensive collective investigation of these comparatively rare deformities. He has attempted to examine all the patients with deformities of absence in Denmark, and on the basis of this material he describes and classifies these deformities in uniform genetic groups.

The author's material comprises practically all patients with absence deformities involving the superior extremities who were born before Jan, 1, 1947, a total of 625 patients. After the formal discussion of the

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